<!-- <p>parent works!</p>

<app-son str="aaa" #child></app-son>
<p>{{child.str}}</p>

<app-son [str]="myName"></app-son>
<hr />
<app-son *ngFor="let item of nameArr" [str]="item" (changeEV)="changeName($event)"></app-son>
<hr />
<input type="text"  #input/>
<button type="button" (click)="myName=input.value">按钮</button>

<app-son2></app-son2> -->
<h1>父组件</h1>
<router-outlet></router-outlet>
<router-outlet name="aux"></router-outlet>
